Originally Posted by bausch

This is what I found online

Britney has a higher range than most soubrettes do because she is able to surpass the restriction of note F5 which is uncommon. She is able to hit notes G5 and A5 which defies the restrictions most singers in her voice type have. Britney can also hit lower notes than other soubrettes can because she is able to hit E3, F3 and G3 which is in fact lower than A3. So, in conclusion, she has the highest range of any soubrette in contemporary music.